Raman Tweezers for Tire and Road Wear Micro- and Nanoparticles analysis
2021
6 citations
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Score: 30
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Alessandro Magazzù,
Raymond Gillibert,
Raymond Gillibert,
Raymond Gillibert,
Raymond Gillibert,
Raymond Gillibert,
Fabienne Lagarde,
P. G. Gucciardi,
Fabienne Lagarde,
Alessandro Magazzù,
Alessandro Magazzù,
Raymond Gillibert,
P. G. Gucciardi,
Alessandro Magazzù,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Raymond Gillibert,
Raymond Gillibert,
Raymond Gillibert,
Raymond Gillibert,
Alessandro Magazzù,
Alessandro Magazzù,
Alessandro Magazzù,
Alessandro Magazzù,
Alessandro Magazzù,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Alessandro Magazzù,
M. G. Donato,
Alessandro Magazzù,
Alessandro Magazzù,
Agnese Callegari,
Agnese Callegari,
M. G. Donato,
Agnese Callegari,
M. G. Donato,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
M. G. Donato,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
M. G. Donato,
M. G. Donato,
M. G. Donato,
M. G. Donato,
Onofrio M. Maragò
Agnese Callegari,
Agnese Callegari,
David Brente Ciriza,
David Brente Ciriza,
David Brente Ciriza,
David Brente Ciriza,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Onofrio M. Maragò
Onofrio M. Maragò
P. G. Gucciardi,
Alessandro Magazzù,
Alessandro Magazzù,
David Brente Ciriza,
Foti Antonino,
Foti Antonino,
Foti Antonino,
Foti Antonino,
David Brente Ciriza,
M. G. Donato,
Fabienne Lagarde,
David Brente Ciriza,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
David Brente Ciriza,
Fabienne Lagarde,
M. G. Donato,
Foti Antonino,
Foti Antonino,
M. G. Donato,
M. G. Donato,
Foti Antonino,
M. G. Donato,
P. G. Gucciardi,
Alessandro Magazzù,
Foti Antonino,
Onofrio M. Maragò
Onofrio M. Maragò
Fabienne Lagarde,
Fabienne Lagarde,
Agnese Callegari,
M. G. Donato,
Agnese Callegari,
M. G. Donato,
Onofrio M. Maragò
Giovanni Volpe,
Onofrio M. Maragò
Onofrio M. Maragò
P. G. Gucciardi,
Onofrio M. Maragò
Raymond Gillibert,
M. G. Donato,
M. G. Donato,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Marc Lamy de la Chapelle,
Fabienne Lagarde,
Onofrio M. Maragò
Onofrio M. Maragò
Onofrio M. Maragò
Marc Lamy de la Chapelle,
Marc Lamy de la Chapelle,
Fabienne Lagarde,
Onofrio M. Maragò
Marc Lamy de la Chapelle,
M. G. Donato,
Giovanni Volpe,
Giovanni Volpe,
Fabienne Lagarde,
Onofrio M. Maragò
Giovanni Volpe,
Giovanni Volpe,
Fabienne Lagarde,
Giovanni Volpe,
P. G. Gucciardi,
P. G. Gucciardi,
P. G. Gucciardi,
P. G. Gucciardi,
Marc Lamy de la Chapelle,
Marc Lamy de la Chapelle,
Marc Lamy de la Chapelle,
P. G. Gucciardi,
Giovanni Volpe,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Marc Lamy de la Chapelle,
Marc Lamy de la Chapelle,
Fabienne Lagarde,
Marc Lamy de la Chapelle,
P. G. Gucciardi,
P. G. Gucciardi,
P. G. Gucciardi,
P. G. Gucciardi,
Onofrio M. Maragò
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
P. G. Gucciardi,
P. G. Gucciardi,
Fabienne Lagarde,
P. G. Gucciardi,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Fabienne Lagarde,
Onofrio M. Maragò
Summary
Researchers used Raman tweezers — optical trapping combined with spectroscopy — to analyze tire and road wear particles, which are a major but difficult-to-characterize category of microplastic pollution. The technique can identify individual sub-millimeter rubber particles without the interference that makes standard FTIR analysis difficult.
Tire and Road Wear Particles (TRWP) are non-exhaust particulate matter generated by road transport means during the mechanical abrasion of tires, brakes and roads. TRWP accumulate on the roadsides and are transported into the aquatic ecosystem during stormwater runoffs. Due to their size (sub-millimetric) and rubber content (elastomers), TRWP are considered microplastics (MPs). While the amount of the MPs polluting the water ecosystem with sizes from ~ 5 μm to more than 100 μm is known, the fraction of smaller particles is unknown due to the technological gap in the detection and analysis of < 5 μm MPs. Here we show that Raman Tweezers, a combination of optical tweezers and Raman spectroscopy, can be used to trap and chemically analyze individual TWRPs in a liquid environment, down to the sub-micrometric scale. Using tire particles mechanically grinded from aged car tires in water solutions, we show that it is possible to optically trap individual sub-micron particles, in a so-called 2D trapping configuration, and acquire their Raman spectrum in few tens of seconds. The analysis is then extended to samples collected from a brake test platform, where we highlight the presence of sub-micrometric agglomerates of rubber and brake debris, thanks to the presence of additional spectral features other than carbon. Our results show the potential of Raman Tweezers in environmental pollution analysis and highlight the formation of nanosized TRWP during wear.